40427100 has 360 divisors, whose sum is σ = 161323008. Its totient is φ = 8553600.

The previous prime is 40427087. The next prime is 40427143. The reversal of 40427100 is 172404.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1304085 + ... + 1304115.

Almost surely, 2^40427100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40427100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80661504).

40427100 is an abundant number, since it is smaller than the sum of its proper divisors (120895908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40427100 is a wasteful number, since it uses less digits than its factorization.

40427100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 40427100 is about 6358.2308860248. The cubic root of 40427100 is about 343.2081004494.

Adding to 40427100 its reverse (172404), we get a palindrome (40599504).

The spelling of 40427100 in words is "forty million, four hundred twenty-seven thousand, one hundred".